The $10 test

One R23.99 packet of chips, bought at an OK supermarket at a spot rate of 1 USD = 16.182216 ZAR. At that rate the purchase should cost exactly $1.4825.

Charged
Net effective cost
Gross FX spread
2%
Base cashback
4

The verdict

Plasma One combines self-custodial stablecoin spending with integrated DeFi yield, skipping the friction of swapping tokens. However, the free tier is limited; the premium tiers only give tokens as their cashback, and FX fee's are high. The gated code-invite mode is not recommended

Score: 4 out of 10

Strengths

  • True self-custody
  • Instant stablecoin yield without lockups
  • No converting between currencies
  • Zero fee P2P transfers

Weaknesses

  • Cashback paid in volatile token (XPL)
  • Sharp cashback taper after cap
  • Physical card requires paid tier or token lock
  • Invite-gated early access

Compare with other cards

Plasma One compared with similar cards
#CardGross FX spreadNet cost on testBase cashbackCustodySetup timeScore
1Plasma One2%4Non-custodial10 minutes4/10
2Coca Card1.18%$1.47 after cashback1% in USDC, paid on the 10thNon-Custodial~8 minutes9.2/10
3EtherFi0.51%~$1.45, beats market after cashback3% instantNon-Custodial~8 minutes9/10
4Bitget Wallet0.51%~$1.47, a perfect mid-market rateFull FX fee refunded as cashbackNon-Custodial~10 minutes8.8/10

Who ranks these cards

I'm Tristyn Pawson, founder of ConsistenC.xyz. Over the last five years I've worked on marketing, development and growth across five crypto cards and neobanks, building at least three of them from scratch.

Alongside that I've run in-depth research on 20+ crypto banks to understand what actually makes someone keep a card in their wallet. These rankings reflect that: which problems are tolerable, and which ones are genuine deal breakers.

Years in market
5
Cards built on
5
Neobanks researched
20+